# Commercial Licensing

vincent is available under a dual-license model.

For personal and non-commercial use, vincent is available under the
[PolyForm Noncommercial License 1.0.0](LICENSE).

Commercial or business use requires a separate commercial license.

## What counts as commercial use

Commercial use includes, but is not limited to, using vincent:

- within a for-profit company or organization;
- as part of an internal software-development or engineering workflow;
- to operate or automate commercial AI/agentic workloads;
- as part of a commercial product or service;
- to provide services to customers or other third parties.

Using vincent internally at a for-profit company is commercial use even when
vincent itself is not being sold or redistributed. If your use is primarily
intended for commercial advantage, you need a commercial license.

The PolyForm Noncommercial License itself states which purposes are permitted
without one: personal study, hobby projects, research and experiment without an
anticipated commercial application, and use by charitable organizations,
educational institutions, public research organizations, public safety or health
organizations, environmental protection organizations, and government
institutions. Read [LICENSE](LICENSE) — it governs, not this summary.

## Versions and the license cutover

The license change is not retroactive. Rights already granted under the MIT
License are not revoked.

| Release | License |
|---|---|
| `v0.2.0` (2026-08-16) and every earlier release, including `v0.1.x` and the `v0.1.0-rc*` prereleases | MIT License |
| the first release published after this change, and every release after it | PolyForm Noncommercial 1.0.0 **or** a commercial license |

If you obtained vincent at `v0.2.0` or earlier, you may keep using that version
under the MIT License it was published under, for any purpose, forever. The
MIT text as it applied to those releases stays in the git history at those tags.
Upgrading to a later release means accepting the license that release ships
under.

## Getting a commercial license

If you would like to use vincent commercially, please contact:

**László Szabó**

- Website: <https://lezli01.is-a.dev>
- GitHub: [@lezli01](https://github.com/lezli01)

Please include your company name, roughly how many developers would use
vincent, and how you intend to use it.

Commercial license terms and pricing are provided separately.